605  Leg-Stamp
닭다리 개다리 1

Name : _________________

refresh

There are 150 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?

There are 230 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1140 cents. How many 3-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 5-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 5-cent stamps are there?



There are 140 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 470 cents. How many 3-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1200 cents. How many 8-cent stamps are there?

+(         )

(         )+

++[[          ]]++